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Active Staff

In practice since 2008

John M. Aversa Jr. DO


Dr John Aversa Jr is a colon and rectal surgeon who has been in practice since 2008. He received his General Surgery training at the Hospital of Saint Raphael’s in New Haven Connecticut and his training in both Advanced Minimally Invasive Surgery and Colon and Rectal Surgery at the Colon and Rectal Clinic of Orlando. He is board certified both Colon and Rectal Surgery and General Surgery and is a fellow of the American College of Surgery.

Dr. Aversa specializes in the surgical treatment of diseases of the small intestine, colon, rectum and anus including: colon cancer, rectal cancer, anal cancer, diverticulitis, Crohn’s disease and Ulcerative Colitis.

He has extensive experience in the techniques of minimally invasive colon and rectal surgery including: robotic surgery, laparoscopic surgery and TAMIS (trans anal minimally invasive surgery)

Dr. Aversa is currently the Chief of Robotic Surgery at Griffin Hospital in Derby Connecticut. He is a member of multiple numerous surgical societies including: the American Society of Colon and Rectal Surgery (ASCRS), Society of American Gastrointestinal and Endoscopic Surgeons (SAGES) and New England Society of Colon and Rectal Surgeons (NESCRS)


  • American Board of Colon & Rectal Surgery
  • American Board of Surgery

Subspecialties / Interests

Colon & Rectal Cancer, Inflammatory Bowel Diseases, Pelvic Floor Disorders, Fecal Incontinence & Constipation

Education & Training

Medical School

Philadelphia College of Osteopathic Medicine - Philadelphia, PA


Hospital of St. Raphael - New Haven, CT


Colon & Rectal Clinic of Orlando - Orlando, FL


Ciardiello Bonadies & Aversa Surgery Group PC

Spring Glen Medical Center
2200 Whitney Ave.  Suite 220
HamdenCT  06518
(203) 281-7000

Ciardiello Bonadies & Aversa Surgery Group PC

111 Wakelee Avenue 
AnsoniaCT  06401
(203) 516-5493

Ciardiello Bonadies & Aversa Surgery Group PC

Sound Medical Center
1591 Boston Post Road 
GuilfordCT  06437
(203) 458-2000

Hospital Specialties

Surgery (Colon / Rectal)


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